Press Releases

LAS VEGAS, Sept. 16 /PRNewswire-FirstCall/ -- The Board of Directors for
Southwest Gas Corporation (NYSE: SWX) has declared the following fourth
quarter cash dividend:
Common Stock
Payable December 1, 2008
Of Record November 17, 2008
Dividend $.225 per share

The dividend equates to 90 cents per share on an annualized basis. The
Company has paid quarterly dividends continuously since going public in 1956.

About Southwest Gas

Southwest Gas Corporation provides natural gas service to over 1.8 million
customers in Arizona, Nevada, and California. For more information about
Southwest Gas, please visit http://www.swgas.com.

This press release may contain statements which constitute
"forward-looking statements" within the meaning of the Private Securities
Litigation Reform Act of 1995 (Reform Act). All such forward-looking
statements are intended to be subject to the safe harbor protection provided
by the Reform Act. A number of important factors affecting the business and
financial results of the Company could cause actual results to differ
materially from those stated in the forward-looking statements. These factors
include, but are not limited to, the impact of weather variations on customer
usage, customer growth rates, the effects of regulation/deregulation, the
timing and amount of rate relief, and changes in rate design.